From 8be389e774a99ec5d08ca86b3902bb98310fd58d Mon Sep 17 00:00:00 2001
From: Konstantin Oblaukhov <oblaukhov.konstantin@gmail.com>
Date: Sat, 06 Jul 2013 15:52:41 +0200
Subject: [PATCH] Enriched Uranium.

---
 technic/grinder.lua |  552 +++++++++++++++++++++++++++++--------------------------
 1 files changed, 292 insertions(+), 260 deletions(-)

diff --git a/technic/grinder.lua b/technic/grinder.lua
index 8d72c70..ba78710 100644
--- a/technic/grinder.lua
+++ b/technic/grinder.lua
@@ -1,319 +1,351 @@
-grinder_recipes ={}
+technic.grinder_recipes ={}
 
-registered_grinder_recipes_count=1
+technic.register_grinder_recipe = function(src, dst)
+				   technic.grinder_recipes[src] = dst
+				   if unified_inventory then
+				      unified_inventory.register_craft(
+					 {
+					    type = "grinding",
+					    output = dst,
+					    items = {src},
+					    width = 0,
+					 })
+				   end
+				end
 
-function register_grinder_recipe (string1,string2)
-grinder_recipes[registered_grinder_recipes_count]={}
-grinder_recipes[registered_grinder_recipes_count].src_name=string1
-grinder_recipes[registered_grinder_recipes_count].dst_name=string2
-registered_grinder_recipes_count=registered_grinder_recipes_count+1
-if UI_recipes_hook then
-	minetest.register_craft({
-	type = "grinding",
-	output = string2,
-	recipe = string1,
-	})
-	end
-end
+-- Receive an ItemStack of result by an ItemStack input
+technic.get_grinder_recipe = function(itemstack)
+				local src_item  = itemstack:to_table()
+				if src_item == nil then
+				   return nil
+				end
+				local item_name = src_item["name"]
+				if technic.grinder_recipes[item_name] then
+				   return ItemStack(technic.grinder_recipes[item_name])
+				else
+				   return nil
+				end
+			     end
 
-register_grinder_recipe("default:stone","default:sand")
-register_grinder_recipe("default:cobble","default:gravel")
-register_grinder_recipe("default:gravel","default:dirt")
-register_grinder_recipe("default:desert_stone","default:desert_sand")
-register_grinder_recipe("default:iron_lump","technic:iron_dust 2") 
-register_grinder_recipe("default:coal_lump","technic:coal_dust 2") 
-register_grinder_recipe("moreores:copper_lump","technic:copper_dust 2")
-register_grinder_recipe("moreores:tin_lump","technic:tin_dust 2") 
-register_grinder_recipe("moreores:silver_lump","technic:silver_dust 2")
-register_grinder_recipe("moreores:gold_lump","technic:gold_dust 2") 
-register_grinder_recipe("moreores:mithril_lump","technic:mithril_dust 2") 
-register_grinder_recipe("technic:chromium_lump","technic:chromium_dust 2") 
-register_grinder_recipe("technic:zinc_lump","technic:zinc_dust 2") 
-register_grinder_recipe("technic:coal_dust","dye:black 2") 
-register_grinder_recipe("default:cactus","dye:green 2") 
-register_grinder_recipe("default:dry_shrub","dye:brown 2") 
-register_grinder_recipe("flowers:flower_geranium","dye:blue 2") 
-register_grinder_recipe("flowers:flower_dandelion_white","dye:white 2") 
-register_grinder_recipe("flowers:flower_dandelion_yellow","dye:yellow 2") 
-register_grinder_recipe("flowers:flower_tulip","dye:orange 2") 
-register_grinder_recipe("flowers:flower_rose","dye:red 2") 
-register_grinder_recipe("flowers:flower_viola","dye:violet 2") 
+
+technic.register_grinder_recipe("default:stone","default:sand")
+technic.register_grinder_recipe("default:cobble","default:gravel")
+technic.register_grinder_recipe("default:gravel","default:dirt")
+technic.register_grinder_recipe("default:desert_stone","default:desert_sand")
+technic.register_grinder_recipe("default:iron_lump","technic:iron_dust 2")
+technic.register_grinder_recipe("default:steel_ingot","technic:iron_dust 1")
+technic.register_grinder_recipe("default:coal_lump","technic:coal_dust 2")
+technic.register_grinder_recipe("default:copper_lump","technic:copper_dust 2")
+technic.register_grinder_recipe("default:copper_ingot","technic:copper_dust 1")
+technic.register_grinder_recipe("default:gold_lump","technic:gold_dust 2")
+technic.register_grinder_recipe("default:gold_ingot","technic:gold_dust 1")
+--technic.register_grinder_recipe("default:bronze_ingot","technic:bronze_dust 1")  -- Dust does not exist yet
+--technic.register_grinder_recipe("home_decor:brass_ingot","technic:brass_dust 1") -- needs check for the mod
+technic.register_grinder_recipe("moreores:tin_lump","technic:tin_dust 2")
+technic.register_grinder_recipe("moreores:tin_ingot","technic:tin_dust 1")
+technic.register_grinder_recipe("moreores:silver_lump","technic:silver_dust 2")
+technic.register_grinder_recipe("moreores:silver_ingot","technic:silver_dust 1")
+technic.register_grinder_recipe("moreores:mithril_lump","technic:mithril_dust 2")
+technic.register_grinder_recipe("moreores:mithril_ingot","technic:mithril_dust 1")
+technic.register_grinder_recipe("technic:chromium_lump","technic:chromium_dust 2")
+technic.register_grinder_recipe("technic:chromium_ingot","technic:chromium_dust 1")
+technic.register_grinder_recipe("technic:stainless_steel_ingot","stainless_steel_dust 1")
+technic.register_grinder_recipe("technic:brass_ingot","technic:brass_dust 1")
+technic.register_grinder_recipe("technic:zinc_lump","technic:zinc_dust 2")
+technic.register_grinder_recipe("technic:zinc_ingot","technic:zinc_dust 1")
 
 minetest.register_craftitem( "technic:coal_dust", {
-	description = "Coal Dust",
-	inventory_image = "technic_coal_dust.png",
-	on_place_on_ground = minetest.craftitem_place_item,
-	})
+				description = "Coal Dust",
+				inventory_image = "technic_coal_dust.png",
+				on_place_on_ground = minetest.craftitem_place_item,
+			     })
 
 minetest.register_craftitem( "technic:iron_dust", {
-	description = "Iron Dust",
-	inventory_image = "technic_iron_dust.png",
-	on_place_on_ground = minetest.craftitem_place_item,
-	})
+				description = "Iron Dust",
+				inventory_image = "technic_iron_dust.png",
+				on_place_on_ground = minetest.craftitem_place_item,
+			     })
 
 minetest.register_craft({
-    type = "cooking",
-    output = "default:steel_ingot",
-    recipe = "technic:iron_dust",
-}) 
+			   type = "cooking",
+			   output = "default:steel_ingot",
+			   recipe = "technic:iron_dust",
+			})
 
 minetest.register_craftitem( "technic:copper_dust", {
-	description = "Copper Dust",
-	inventory_image = "technic_copper_dust.png",
-	on_place_on_ground = minetest.craftitem_place_item,
-	})
+				description = "Copper Dust",
+				inventory_image = "technic_copper_dust.png",
+				on_place_on_ground = minetest.craftitem_place_item,
+			     })
 minetest.register_craft({
-    type = "cooking",
-    output = "moreores:copper_ingot",
-    recipe = "technic:copper_dust",
-}) 
+			   type = "cooking",
+			   output = "moreores:copper_ingot",
+			   recipe = "technic:copper_dust",
+			})
 
 minetest.register_craftitem( "technic:tin_dust", {
-	description = "Tin Dust",
-	inventory_image = "technic_tin_dust.png",
-	on_place_on_ground = minetest.craftitem_place_item,
-	})
+				description = "Tin Dust",
+				inventory_image = "technic_tin_dust.png",
+				on_place_on_ground = minetest.craftitem_place_item,
+			     })
 minetest.register_craft({
-    type = "cooking",
-    output = "moreores:tin_ingot",
-    recipe = "technic:tin_dust",
-}) 
+			   type = "cooking",
+			   output = "moreores:tin_ingot",
+			   recipe = "technic:tin_dust",
+			})
 
 minetest.register_craftitem( "technic:silver_dust", {
-	description = "Silver Dust",
-	inventory_image = "technic_silver_dust.png",
-	on_place_on_ground = minetest.craftitem_place_item,
-	})
+				description = "Silver Dust",
+				inventory_image = "technic_silver_dust.png",
+				on_place_on_ground = minetest.craftitem_place_item,
+			     })
 minetest.register_craft({
-    type = "cooking",
-    output = "moreores:silver_ingot",
-    recipe = "technic:silver_dust",
-}) 
+			   type = "cooking",
+			   output = "moreores:silver_ingot",
+			   recipe = "technic:silver_dust",
+			})
 
 minetest.register_craftitem( "technic:gold_dust", {
-	description = "Gold Dust",
-	inventory_image = "technic_gold_dust.png",
-	on_place_on_ground = minetest.craftitem_place_item,
-	})
+				description = "Gold Dust",
+				inventory_image = "technic_gold_dust.png",
+				on_place_on_ground = minetest.craftitem_place_item,
+			     })
 minetest.register_craft({
-    type = "cooking",
-    output = "moreores:gold_ingot",
-    recipe = "technic:gold_dust",
-}) 
+			   type = "cooking",
+			   output = "moreores:gold_ingot",
+			   recipe = "technic:gold_dust",
+			})
 
 minetest.register_craftitem( "technic:mithril_dust", {
-	description = "Mithril Dust",
-	inventory_image = "technic_mithril_dust.png",
-	on_place_on_ground = minetest.craftitem_place_item,
-	})
+				description = "Mithril Dust",
+				inventory_image = "technic_mithril_dust.png",
+				on_place_on_ground = minetest.craftitem_place_item,
+			     })
 minetest.register_craft({
-    type = "cooking",
-    output = "moreores:mithril_ingot",
-    recipe = "technic:mithril_dust",
-}) 
+			   type = "cooking",
+			   output = "moreores:mithril_ingot",
+			   recipe = "technic:mithril_dust",
+			})
 
 minetest.register_craftitem( "technic:chromium_dust", {
-	description = "Chromium Dust",
-	inventory_image = "technic_chromium_dust.png",
-	on_place_on_ground = minetest.craftitem_place_item,
-	})
+				description = "Chromium Dust",
+				inventory_image = "technic_chromium_dust.png",
+				on_place_on_ground = minetest.craftitem_place_item,
+			     })
 minetest.register_craft({
-    type = "cooking",
-    output = "technic:chromium_ingot",
-    recipe = "technic:chromium_dust",
-}) 
+			   type = "cooking",
+			   output = "technic:chromium_ingot",
+			   recipe = "technic:chromium_dust",
+			})
 
 minetest.register_craftitem( "technic:bronze_dust", {
-	description = "Bronze Dust",
-	inventory_image = "technic_bronze_dust.png",
-	on_place_on_ground = minetest.craftitem_place_item,
-	})
+				description = "Bronze Dust",
+				inventory_image = "technic_bronze_dust.png",
+				on_place_on_ground = minetest.craftitem_place_item,
+			     })
 minetest.register_craft({
-    type = "cooking",
-    output = "moreores:bronze_ingot",
-    recipe = "technic:bronze_dust",
-}) 
+			   type = "cooking",
+			   output = "moreores:bronze_ingot",
+			   recipe = "technic:bronze_dust",
+			})
 
 minetest.register_craftitem( "technic:brass_dust", {
-	description = "Brass Dust",
-	inventory_image = "technic_brass_dust.png",
-	on_place_on_ground = minetest.craftitem_place_item,
-	})
+				description = "Brass Dust",
+				inventory_image = "technic_brass_dust.png",
+				on_place_on_ground = minetest.craftitem_place_item,
+			     })
 minetest.register_craft({
-    type = "cooking",
-    output = "technic:brass_ingot",
-    recipe = "technic:brass_dust",
-}) 
+			   type = "cooking",
+			   output = "technic:brass_ingot",
+			   recipe = "technic:brass_dust",
+			})
 
 minetest.register_craftitem( "technic:stainless_steel_dust", {
-	description = "Stainless Steel Dust",
-	inventory_image = "technic_stainless_steel_dust.png",
-	})
+				description = "Stainless Steel Dust",
+				inventory_image = "technic_stainless_steel_dust.png",
+			     })
 
 minetest.register_craft({
-    type = "cooking",
-    output = "technic:stainless_steel_ingot",
-    recipe = "technic:stainless_steel_dust",
-}) 
+			   type = "cooking",
+			   output = "technic:stainless_steel_ingot",
+			   recipe = "technic:stainless_steel_dust",
+			})
 
 minetest.register_craftitem( "technic:zinc_dust", {
-	description = "Zinc Dust",
-	inventory_image = "technic_zinc_dust.png",
-	})
+				description = "Zinc Dust",
+				inventory_image = "technic_zinc_dust.png",
+			     })
 
 minetest.register_craft({
-    type = "cooking",
-    output = "technic:zinc_ingot",
-    recipe = "technic:zinc_dust",
-}) 
+			   type = "cooking",
+			   output = "technic:zinc_ingot",
+			   recipe = "technic:zinc_dust",
+			})
 
 minetest.register_alias("grinder", "technic:grinder")
 minetest.register_craft({
-	output = 'technic:grinder',
-	recipe = {
-		{'default:desert_stone', 'default:desert_stone', 'default:desert_stone'},
-		{'default:desert_stone', 'technic:diamond', 'default:desert_stone'},
-		{'default:stone', 'moreores:copper_ingot', 'default:stone'},
-	}
-})
+			   output = 'technic:grinder',
+			   recipe = {
+			      {'default:desert_stone', 'default:desert_stone', 'default:desert_stone'},
+			      {'default:desert_stone', 'default:diamond', 'default:desert_stone'},
+			      {'default:stone', 'moreores:copper_ingot', 'default:stone'},
+			   }
+			})
 
 minetest.register_craftitem("technic:grinder", {
-	description = "Grinder",
-	stack_max = 99,
-}) 
+			       description = "Grinder",
+			       stack_max = 99,
+			    })
 
-grinder_formspec =
-	"invsize[8,9;]"..
-	"image[1,1;1,2;technic_power_meter_bg.png]"..
-	"label[0,0;Grinder]"..
-	"label[1,3;Power level]"..
-	"list[current_name;src;3,1;1,1;]"..
-	"list[current_name;dst;5,1;2,2;]"..
-	"list[current_player;main;0,5;8,4;]"
+local grinder_formspec =
+   "invsize[8,9;]"..
+   "label[0,0;Grinder]"..
+   "list[current_name;src;3,1;1,1;]"..
+   "list[current_name;dst;5,1;2,2;]"..
+   "list[current_player;main;0,5;8,4;]"
 
-
-minetest.register_node("technic:grinder", {
-	description = "Grinder",
-	tiles = {"technic_grinder_top.png", "technic_machine_bottom.png", "technic_grinder_side.png",
-		"technic_grinder_side.png", "technic_grinder_side.png", "technic_grinder_front.png"},
-	paramtype2 = "facedir",
-	groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2},
-	legacy_facedir_simple = true,
-	sounds = default.node_sound_wood_defaults(),
-	technic_power_machine=1,
-	internal_EU_buffer=0;
-	internal_EU_buffer_size=5000;
-	grind_time=0;
-	grinded = nil;
-	src_time = 0;
-	on_construct = function(pos)
-		local meta = minetest.env:get_meta(pos)
-		meta:set_string("infotext", "Grinder")
-		meta:set_float("technic_power_machine", 1)
-		meta:set_float("internal_EU_buffer", 0)
-		meta:set_float("internal_EU_buffer_size", 5000)
-		meta:set_string("formspec", grinder_formspec)
-		meta:set_float("grind_time", 0)
-		
-		local inv = meta:get_inventory()
-		inv:set_size("src", 1)
-		inv:set_size("dst", 4)
-		
+minetest.register_node(
+   "technic:grinder",
+   {
+      description = "Grinder",
+      tiles = {"technic_lv_grinder_top.png", "technic_lv_grinder_bottom.png", "technic_lv_grinder_side.png",
+	       "technic_lv_grinder_side.png", "technic_lv_grinder_side.png", "technic_lv_grinder_front.png"},
+      paramtype2 = "facedir",
+      groups = {cracky=2},
+      legacy_facedir_simple = true,
+      sounds = default.node_sound_wood_defaults(),
+      on_construct = function(pos)
+			local meta = minetest.env:get_meta(pos)
+			meta:set_string("infotext", "Grinder")
+			meta:set_float("technic_power_machine", 1)
+			meta:set_string("formspec", grinder_formspec)
+			local inv = meta:get_inventory()
+			inv:set_size("src", 1)
+			inv:set_size("dst", 4)
+		     end,
+      can_dig = function(pos,player)
+		   local meta = minetest.env:get_meta(pos);
+		   local inv = meta:get_inventory()
+		   if not inv:is_empty("src") or not inv:is_empty("dst") then
+		      minetest.chat_send_player(player:get_player_name(), "Machine cannot be removed because it is not empty");
+		      return false
+		   else
+		      return true
+		   end
 		end,
-	can_dig = function(pos,player)
-		local meta = minetest.env:get_meta(pos);
-		local inv = meta:get_inventory()
-		if not inv:is_empty("src") then
-			return false
-		end
-		if not inv:is_empty("dst") then
-			return false
-		end
+   })
 
-		return true
+minetest.register_node(
+   "technic:grinder_active",
+   {
+      description = "Grinder",
+      tiles = {"technic_lv_grinder_top.png", "technic_lv_grinder_bottom.png", "technic_lv_grinder_side.png",
+	       "technic_lv_grinder_side.png", "technic_lv_grinder_side.png", "technic_lv_grinder_front_active.png"},
+      paramtype2 = "facedir",
+      groups = {cracky=2,not_in_creative_inventory=1},
+      legacy_facedir_simple = true,
+      sounds = default.node_sound_wood_defaults(),
+      can_dig = function(pos,player)
+		   local meta = minetest.env:get_meta(pos);
+		   local inv = meta:get_inventory()
+		   if not inv:is_empty("src") or not inv:is_empty("dst") then
+		      minetest.chat_send_player(player:get_player_name(), "Machine cannot be removed because it is not empty");
+		      return false
+		   else
+		      return true
+		   end
 		end,
+   })
 
-})
+minetest.register_abm(
+   { nodenames = {"technic:grinder","technic:grinder_active"},
+     interval = 1,
+     chance   = 1,
+     action = function(pos, node, active_object_count, active_object_count_wider)
+		 -- Run a machine through its states. Takes the same arguments as the ABM action
+		 -- and adds the machine's states and any extra data which is needed by the machine.
+		 -- A machine is characterized by running through a set number of states (usually 2:
+		 -- Idle and active) in some order. A state decides when to move to the next one
+		 -- and the machine only changes state if it is powered correctly.
+		 -- The machine will automatically shut down if disconnected from power in some fashion.
+		 local meta         = minetest.env:get_meta(pos)
+		 local eu_input     = meta:get_int("LV_EU_input")
+		 local state        = meta:get_int("state")
+		 local next_state   = state
 
-minetest.register_abm({
-	nodenames = {"technic:grinder"},
-	interval = 1,
-	chance = 1,
-	action = function(pos, node, active_object_count, active_object_count_wider)
+		 -- Machine information
+		 local machine_name         = "Grinder"
+		 local machine_node         = "technic:grinder"
+		 local machine_state_demand = { 50, 300 }
+			 
+		 -- Setup meta data if it does not exist. state is used as an indicator of this
+		 if state == 0 then
+		    meta:set_int("state", 1)
+		    meta:set_int("LV_EU_demand", machine_state_demand[1])
+		    meta:set_int("LV_EU_input", 0)
+		    return
+		 end
+			 
+		 -- Power off automatically if no longer connected to a switching station
+		 technic.switching_station_timeout_count(pos, "LV")
+			 
+		 -- State machine
+		 if eu_input == 0 then
+		    -- unpowered - go idle
+		    hacky_swap_node(pos, machine_node)
+		    meta:set_string("infotext", machine_name.." Unpowered")
+		    next_state = 1
+		 elseif eu_input == machine_state_demand[state] then
+		    -- Powered - do the state specific actions
+			    
+		    local inv    = meta:get_inventory()
+		    local empty  = inv:is_empty("src")
 
-	local meta = minetest.env:get_meta(pos)
-	local charge= meta:get_float("internal_EU_buffer")
-	local max_charge= meta:get_float("internal_EU_buffer_size")
-	local grind_cost=200
+		    if state == 1 then
+		       hacky_swap_node(pos, machine_node)
+		       meta:set_string("infotext", machine_name.." Idle")
 
-	local load = math.floor((charge/max_charge)*100)
-	meta:set_string("formspec",
-				"invsize[8,9;]"..
-				"image[1,1;1,2;technic_power_meter_bg.png^[lowpart:"..
-						(load)..":technic_power_meter_fg.png]"..
-				"label[0,0;Grinder]"..
-				"label[1,3;Power level]"..
-				"list[current_name;src;3,1;1,1;]"..
-				"list[current_name;dst;5,1;2,2;]"..
-				"list[current_player;main;0,5;8,4;]"
-				)
+		       local result = technic.get_grinder_recipe(inv:get_stack("src", 1))
+		       if not empty and result and inv:room_for_item("dst",result) then
+			  meta:set_int("src_time", 0)
+			  next_state = 2
+		       end
 
-		
+		    elseif state == 2 then
+		       hacky_swap_node(pos, machine_node.."_active")
+		       meta:set_string("infotext", machine_name.." Active")
 
-		local inv = meta:get_inventory()
-		
---		local grinder_on = meta:get_float("grinder_on")
-		
-		local srclist = inv:get_list("src")
-		if inv:is_empty("src") then meta:set_float("grinder_on",0) end 
+		       if empty then
+			  next_state = 1
+		       else
+			  meta:set_int("src_time", meta:get_int("src_time") + 1)
+			  if meta:get_int("src_time") == 4 then -- 4 ticks per output
+			     -- check if there's room for output in "dst" list
+			     local result = technic.get_grinder_recipe(inv:get_stack("src", 1))
 
-		if (meta:get_float("grinder_on") == 1) then
-			if charge>=grind_cost then
-			charge=charge-grind_cost;
-			meta:set_float("internal_EU_buffer",charge)
-			meta:set_float("src_time", meta:get_float("src_time") + 1)
-			if meta:get_float("src_time") >= meta:get_float("grind_time") then
-				-- check if there's room for output in "dst" list
-				grinded = get_grinded_item (inv:get_stack("src", 1))		
-				if inv:room_for_item("dst",grinded) then
-					-- Put result in "dst" list
-					inv:add_item("dst", grinded)
-					-- take stuff from "src" list
-					srcstack = inv:get_stack("src", 1)
-					srcstack:take_item()
-					inv:set_stack("src", 1, srcstack)
-					if inv:is_empty("src") then meta:set_float("grinder_on",0) end 
-				else
-					print("Grinder inventory full!")
-				end
-				meta:set_float("src_time", 0)
-			end
-			end
-		end
-		if (meta:get_float("grinder_on")==0) then
-		local grinded=nil 
-		if not inv:is_empty("src") then
-		 grinded = get_grinded_item (inv:get_stack("src", 1))
-		 if grinded then meta:set_float("grinder_on",1) end
-		 grind_time=4
-		 meta:set_float("grind_time",grind_time)
-		 meta:set_float("src_time", 0)
-		 return
-		end
-		end
-	end
-}) 
+			     meta:set_int("src_time", 0)
+			     if inv:room_for_item("dst",result) then
+				-- take stuff from "src" list
+				srcstack = inv:get_stack("src", 1)
+				srcstack:take_item()
+				inv:set_stack("src", 1, srcstack)
+				-- Put result in "dst" list
+				inv:add_item("dst", result)
+			     else
+				-- all full: go idle
+				next_state = 1
+			     end
+			  end
+		       end
+		    end
+		 end
+		 -- Change state?
+		 if next_state ~= state then
+		    meta:set_int("LV_EU_demand", machine_state_demand[next_state])
+		    meta:set_int("state", next_state)
+		 end
+	      end
+  })
 
-function get_grinded_item (items)
-new_item =nil
-src_item=items:to_table()
-item_name=src_item["name"]
-
-local counter=registered_grinder_recipes_count-1
-for i=1, counter,1 do
-	if	grinder_recipes[i].src_name==item_name then return ItemStack(grinder_recipes[i].dst_name) end
-end
-return nil
-end
-
-register_LV_machine ("technic:grinder","RE")
+technic.register_LV_machine ("technic:grinder","RE")
+technic.register_LV_machine ("technic:grinder_active","RE")

--
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